Fly-screen.



A. HAGER.

FLY SCREEN.

APPLICATION FILED ABBA, 1912.

2 SHEETS-SHEET 1.

Patented Dec.3,1912.

m @Ag @Qibmeo A. HAGER.

FLY SCREEN.

APPLICATION FILED APR.4, 1912.

LQQLQSS PQ, Patented Dec. 3, 1912.

2 SHEETSSHEET 2.

ALEXANDER HAGER, 0F JAMESTOWN, NEW YORK.

FLY-SCREEN.

Specification of Letters Patent.

Patented Dec. 3, 1912.

Application filed April a, 1912. Serial No. 885,471.

To all whom it may concern:

Be it known that I, ALEXANDER HAGER, a citizen of theUnited States, resldmg at Jamestown, in the county of Chautauqua and State of New York, have invented certain new and useful Improvements in Fly- Screens; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appert-ains to make and use the same.

This invention relates to window screens, and more especially to those which are extensible; and the object of the same 1s to produce a fly screen made entirely of metal, extensible laterally to fit various wlndows within limits, capable also of slight extension longitudinally to fit windows of various heights within limits, and possessing means whereby the netting may be strained and stretched when it has become slack. These and other objects are accomplished by constructing the screen as hereinafter more fully described and claimed, and as shown in. the drawings wherein Figure 1 is an inside elevation of a window frame with one section of my improved screen in place therein, and Fig. 2 is an enlarged section on the line 2-2 of Fig. 1. Fig. 3 is a vertical section through the upper rail of the screen, on the line 3-3 of Fig. 1. Figs. 4 and 5 are horizontal sections through the side rails of the screen, the former showing one of the side strips drawn outward. Fig. 6 is an enlarged elevation of one corner of the,screen complete. Fig. 7 is a lower edge view of this corner. Fig. 8 is a perspective detail of the various parts which go to make up such a. corner (omitting the side strips and the netting) with said 'parts slightly separated from each other.

In the drawings the numeral 1 designates the netting which is by preference of wire. What might be called the inner frame is made up of four pieces 2 mitered at their extremities as at 3 and each having a longitudinal rib 4 near its inner edge and either a continuous upturned flange or occasional 111g 5 along its outer edge, these being pierced with threaded holes and serving as nuts as described below. Over the ribs of the four pieces of this frame pass the edges of the netting, and over the same lie curved beads 6 which are secured thereon by screws 7 or otherwise so that the edge of the netting 1s clampedwithin the side bars of this inner frame, and the latter may be increased in both its lateral and vertical dimensions to stretch the netting when it'has become slack.

What might be called the outer frame is made up of a ratherwide strip of sheet metal and comprises a flat base 10, an outer edge 11 standing at right angles to the base and extending around the periphery thereof, and an inturned flange 12, the flanges along the side strips of this outer frame being narrow andthose along the top and bottom strips thereof being rather wide as seen at 12. The base 10 underlies the inner frame 2 and surrounds the sight opening in which the netting appears, and its width is such that it extends radially outward beyond the lugs 5 and the inner frame for quite some distance and yet not so far but that the edge 11 around this outer frame shall define a rectangle which in width is less than the width of the window to be screened and in height about half the height of such window. In this edge 11 are swiveled the heads 13 of -screws 14 whose shanks pass across the base 10 and whose threaded ends engage the threaded openings in the lugs 5. so that when said screws are rotated in the proper direction the inner frame 2 may be made larger and the netting stretched transversely or vertically within the frame in a manner which will be clear. In order to permit the netting to be stretched both transversely and vertically, the heads 6 are covered where their mitered corners 16 abut by corner-pieces 17 best seen in Fig. 8, each having a right-angular grooved body 18 adapted to overlie the contiguous ends of the two heads 6 which meet at that point, and a flange which is slotted as at 19 and receives a screw 20 whereby the corner piece is movably mounted on the top or bottom bar of one of the frame-members 2. It. follows that when the screws 14 are adjusted at either the top and bottom or the sides or both, the radially outward movement of the lugs 5 and the several bars of the inner frame 2 causes the similar movement of the several beads6, and these corner pieces permit the extremities of the latter to slip out from under the grooves in the body of the corner pieces in a manner which will be clear.

Coacting with the screen proper as thus constructed are two side strips, each comprising a flat base 21 and an inturned inner edge 22 pierced with eyes23 for the loose passage of the screws l4-such base and edge complementing the edge andbase of the side bars of the outer frame and making up a chamber 24 across which pass the bodies of the screws 14. The base member 21 of each side strip has transverse slots 25 loosely engaging screws or pins 26 rising from the side flanges 12, by means of which this strip is slidably and adjustably mounted over the outer frame; and the outer edge of the strip is formed with an inturned or hooked flange which may be bent away from the outer frame as seen at 27 or inward over its outer edge 11 as seen at 27. Within the chamber are located expansive springs 28 whose normal tendency is to press the edge 22. of the side strip inward away from the edge 11 of the outer frame and therefore draw the flanges 27 inward and reduce the width of the entire screen. At top and bottom of the latter where the side strlps are omitted, the extra width given to the flange 12 avoids the necessity for the use of such side strip and yet presents the same appearance, and the upper and lower extremities of the base portions 21 of the side strips overlie the outer ends of the top and bottom flanges 12' as shown.

The beads or guides on which this inrproved screen is mounted are best seen in Figs. 4 and 5, and their cross section may be said to simulate that of an I-beam. The

outer flanges 30 are sqmred as at 31 to the window frame 32, the1r webs 33 projecting straight inward, and their inner flanges 34 are preferably hooked slightly as shown so as to slidably engage the hooked flanges 27 or 27 on the fly screen. These guides must be mounted on the window frame or its beads in such manner as not to interfere with the movements of the sashes or the swing in of the blinds, as well known to every builder, and therefore much latitude will be permitted in this respect. Also the base 21 of the side strip is of a width to permit it to be bent somewhat as shown at'2l when it becomes necessary to deflect its hooked flange 27' sufficiently to cause the body of one screen to move in a plane past the body of its companion screen. This suggestion of course applies to windows having two screen frames, an upper and a lower; but where the window is closed by a single or double-length screen, there need be but one frame and one pair of guides. Obviousl the screen frame is put in place by drawmg its side strips outward against the tension of the springs 28 and engaging their flanges 27 or 27 over the inner flanges 34 of the guides, and this action causes the slots 25 to slide over the screws or pins 26 while the eyes 23 slide along the shanks of the screws 14 and the inner edge 22 of each side strip moves over the face of the base 10 of that side strip of the inner frame .2-Iwith which it coacts to members have over each other.

produce the chamber 24'. Thus it will be seen that this screen is adapted to windows of a width greater than the normal size of the outer frame, and the extent to which the screen can be am lified transversely depends only upon the re ative sizes of the side bars of the outer frame and the side strips and therefore the relative movements that these To adapt the screen to windows of different heights, I have but to make use of an extension strip 40 which may well have anoutturned flange 41 at its upper edge secured inside the upper cross bar of the window frame so that the body of this strip may depend alongside the when it is raised and lowered; and if the entire screen and both its frames distended to their greatest degree are too short for the a edge yet laps the upper ed e of the lower sash. On the other hand, i the two screen sashes are too long vertically for the height of the window, their contiguous rails may be permitted to lap for some little distance as will be understood. Therefore this screen is capable of use in windows of various heights within limits, and may be extended laterally as above described so that it is capable of use in windows of various widths within limits. Being entirely of metal it is much lighter, stronger and more durable than wood; and if made of the proper metal, properly treated, it will resist the action of the climate.

What is claimed as new is:

1. In a screen, the combination with the netting, and a frame in which it is carried made up of a flat base, an outer edge at right angles thereto, and an inturned flange overhan mg the base; of two side strips having ace plates overlying the flanges .of the side bars-of the frame and provided with transverse slots, pins rising from said flanges and loosely engaging said slots, and means along the outer edges of'said side stripsfor engagingthe guides in the window frame.

2. In a screen, the combination with the netting, and 'a frame in which it is carried made up of a flat base, an outer edge, and an inturned flange overhanging the base; of two side strips having face plates overlying the flanges of the side bars of the frame and provided with transverse slots and inturned edges resting upon the base portion of said frame, expansive springs between said inturned edges of the strip and the'outer'edges of the base, pins rising from said flanges and loosely engaging said slots, and means along hr. v1.

the outer edges of said side stri s for en: 7

8,0 plane 1n wh ch the upper screen frame moves netting, an inner frame attached to the edges thereof and having nuts around its periphery, an outer frame made up of a fiat base, an outer edge at right angles thereto, and an inturned flange overhanging the base, and screws swiveled through said outer edge and engaging said nuts; of two side strips each made up of a face plate overlying the flange of one side bar of the frame and an inturned edge pierced with eyes through which said screws pass loosely, expansive springs between the inturned edge of each strip and the outer edge of the corresponding side bar of the frame, and means along the outer edges of said side strips for engaging the guides in the window frame.

4. In a screen, the combination with an inner frame having a rib around its opening and nuts around its periphery, the netting whose edges overlie said strip, beads secured over the netting and to the ribs, means for permitting the adjustment of this frame and said beads at the corners of the netting, and an outer frame including a flat base underlying the inner frame and an outturned outer edge; of screws swiveled through said edge and engaging said nuts, two side strips having face plates overlying the bodies of the screws and inturned inner edges pierced with eyes moving loosely on said screws, expansive springs between said inner edges and the outer edges of the outer frame, and means along the outer edges of said side strips for engaging the guides in the window frames 5. In a screen, the combination with an inner frame made up of four pieces mitered at their extremities and having nuts along their outer edges, the netting, beads secured over the edges of the netting and to the pieces of the inner frame, and means for permitting the adjustment of the frame and beads at the corners of the netting; of

an outer frame made up of a flat base underlying the inner frame and an outturned outer edge, screws swiveled through said edge and engaging said nuts, strips on the side bars of the outer frame, and means along the outer edges of the strips for engaging the guides in the window frame.

6. In a screen, the combination with an outer frame, and means for guiding itwithin the window frame; of an inner frame made up of four pieces mitered at their extremities, adjustable connections between said pieces and therespective pieces of the outer frame, raised ribs along the inner edges of said pieces, the netting whose edges overlie said ribs, beads overlying the edges of the netting and secured upon said ribs, and four corner pieces whereof each has a right-angular grooved body loosely embracing the contiguous ends of two beads, and a flange overlying the inner frame and provided with a slot, and a screw passing through said slot and into the inner frame.

7.' The herein described guide for fly screens and the like, whose cross section is substantially that of an I-beain, its outer flanges being secured inside the window frame, its web projecting inward at right angles to said frame, and its inner flanges being hooked combined with side strips having hooked flanges along their outer edges engaging the inner flanges of said guides, the strips on one side of said screen being bent, and means for adjustably connecting said strips with the side bars of the screen, for the purpose set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses. I ALEXANDER HAGER.

Witnesses:

EARLE O. HULT UIST, HARLEY F. JOHNSON. 

